Watches

The first clocks are believed to appear in the 15th century. But of course they
were huge and inconvenient. In 1511 Peter Henlein, a Nürnberg clockmaker, invented
a special mechanism which made it possible to place watch in a pocket! And after
that, as time passed by and new technologies appeared, wristwatches were invented.
In the 1820s wristwatches were worn only by women, as gentlemen considered them
to be "unmanly". But during World War I they came into fashion thanks to soldiers
who used them during the battles when their hands were busy with the arms, but
they constantly needed to know the exact time.